<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title></title>
    <style>
        *{margin: 0;padding: 0}
        p,h4,div{
            width: 200px;
            height: 300px;
            background-color: #1abebf;
        }


    </style>
</head>
<body>
<p>p</p>
<h4>h4</h4>
<div>div</div>

</body>
</html>